Automobile auxiliary frame wood mold

Abstract

The utility model provides an automobile auxiliary frame wood mould which comprises an upper sand mould and a lower sand mould which are of a wood structure, the upper sand mould and the lower sand mould are respectively provided with a positioning boss and a positioning groove which correspond to each other, the positioning boss is provided with an upper molded surface, a pouring gate part and a riser part, the riser part is distributed on the periphery of the upper molded surface and the front side of the middle of the upper molded surface, and the upper molded surface is provided with a lower molded surface. The upper molded surface, the pouring gate part and the riser part are connected through a first runner, and a lower molded surface and a second runner corresponding to the first runner are arranged on the positioning groove. The utility model has the advantages that the riser parts are distributed on the periphery and the front side of the middle of the upper molded surface, are arranged aiming at the auxiliary frame of the automobile, and can effectively play a feeding role.

Description

Technical Field

[0001] This utility model relates to the technical field of wooden molds, and in particular to a wooden mold for an automobile subframe. Background Technology

[0002] The automotive subframe is the skeleton of the front and rear axles and a component of them. It is not a complete frame, but rather a support structure that holds the axles and suspension together, connecting them to the main frame. Sand casting is one of the most widely used processes in automotive subframe manufacturing. Sand molds are used to create casting molds, into which the subframe is then poured to form its shape. Riser design is crucial for subframes, which have complex structures and uneven wall thicknesses. Often, improperly positioned risers fail to effectively compensate for shrinkage during solidification. Summary of the Invention

[0003] In view of this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a wooden mold for an automobile subframe.

[0004] This utility model provides a wooden mold for an automobile subframe, including an upper sand mold and a lower sand mold of wooden structure. The upper sand mold and the lower sand mold are respectively provided with corresponding positioning bosses 1 and positioning grooves 7. The positioning bosses 1 are provided with an upper mold surface 2, a casting port 4, and a riser 6. The riser 6 is distributed around the upper mold surface 2 and the front side of the middle. The upper mold surface 2, the casting port 4, and the riser 6 are connected by a first flow channel 3. The positioning grooves 7 are provided with a lower mold surface 8 and a second flow channel 9 corresponding to the first flow channel 3.

[0005] Furthermore, the upper and lower sides of the positioning boss 1 are respectively concave and convex.

[0006] Furthermore, it also includes a core block 11 with a wooden structure, wherein a first core portion 5 and a second core portion 10 are respectively provided on the positioning boss 1 and the positioning groove 7, and the first core portion 5 and the second core portion 10 correspond to the core block 11.

[0007] Furthermore, the core block 11 is composed of trapezoidal bodies connected to the core.

[0008] Furthermore, the casting port 4 is located on the rear side of the middle of the upper mold surface 2.

[0009] Furthermore, both the casting port 4 and the riser 6 are frustum-shaped.

[0010] The advantages of this utility model are as follows: the risers are distributed around the perimeter and the front center of the upper mold surface, specifically for the automotive subframe, effectively contributing to shrinkage compensation; the use of a wooden structure results in relatively low wood costs, effectively controlling mold manufacturing costs, and facilitating wood processing; the positioning bosses of the upper sand mold and the positioning grooves of the lower sand mold cooperate to achieve rapid and precise positioning during the assembly of the upper and lower casting sand molds; in the sand-casting mold, the mold surface becomes the cavity, the pouring gate becomes the pouring port, and the riser becomes the riser, with the first and second runners correspondingly forming flow channels; the concave and convex design further enhances the stability of the positioning. Qualitative analysis effectively avoids misalignment during mold closing, ensuring precise positioning of the upper and lower casting sand molds after sand casting. The first core becomes the first core groove, and the second core becomes the second core groove, with the first and second cores corresponding to the stepped body and core of the core block, respectively. The stepped body is used for positioning and demolding, while the core is used to form the side wall of the automotive subframe. The core can be removed after opening the casting sand mold. The pouring gate is located on the rear side of the middle of the upper mold surface, which facilitates the uniform and stable flow of the casting liquid into the casting sand mold cavity. The frustum-shaped riser helps maintain the temperature of the casting liquid inside the riser, prolongs the solidification time of the casting liquid, and improves the feeding efficiency. Attached Figure Description

[0011] Figure 1 This is a top view of the present invention;

[0012] Figure 2 This is a schematic diagram of the upper sand mold of this utility model;

[0013] Figure 3 This is a schematic diagram of the lower sand mold of this utility model;

[0014] Figure 4 This is a schematic diagram of the core block of this utility model. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings.

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0017] See Figures 1 to 4This utility model provides a wooden mold for an automotive subframe, comprising an upper sand mold and a lower sand mold with wooden structures. The use of wood reduces wood costs, effectively controlling mold manufacturing costs, and facilitates wood processing. The upper sand mold is sand-cast to form an upper casting sand mold, and the lower sand mold is sand-cast to form a lower casting sand mold. The upper and lower sand molds are respectively provided with corresponding positioning bosses 1 and positioning grooves 7. The positioning bosses of the upper sand mold cooperate with the positioning grooves of the lower sand mold to achieve quick and precise positioning during the assembly of the upper and lower casting sand molds. The positioning bosses 1 are provided with an upper mold surface 2, a casting port 4, and a riser 6. The risers 6 are distributed around and in the middle of the upper mold surface 2. On the front side, the riser is positioned to accommodate thick or complex sections of the automotive subframe. The riser prevents defects such as shrinkage cavities and porosity in the casting, ensuring the density and integrity of the casting. It also provides a channel for the accumulation and discharge of gas and impurities. The upper mold surface 2, the pouring gate 4, and the riser 6 are connected by the first flow channel 3. The positioning groove 7 is provided with the lower mold surface 8 and the second flow channel 9 corresponding to the first flow channel 3. The casting sand mold formed by sand casting transforms the mold surface into a cavity, the pouring gate into a pouring port, and the riser into a riser. The first and second flow channels correspond to each other to form flow channels. The casting liquid enters the pouring gate and flows into the cavity and riser through the flow channels.

[0018] The upper and lower sides of the positioning boss 1 are concave and convex, respectively. The concave and convex design further enhances the stability of positioning and effectively avoids misalignment during mold closing, thereby ensuring the accurate positioning of the upper and lower casting sand molds formed after sand casting.

[0019] It also includes a core block 11 with a wooden structure. A first core part 5 and a second core part 10 are respectively provided on the positioning boss 1 and the positioning groove 7. The first core part 5 and the second core part 10 correspond to the core block 11. The first core part becomes the first core groove and the second core part becomes the second core groove. The first core part and the second core part correspond to the stepped body and core part of the core block, respectively.

[0020] See Figure 4 The core block 11 is composed of trapezoidal bodies connected to the core. The trapezoidal bodies are used for positioning and demolding, while the core is used to form the side wall of the automotive subframe. The core can be removed after the casting sand mold is opened.

[0021] The casting inlet 4 is located on the rear side of the middle of the upper mold surface 2. This arrangement facilitates the uniform and smooth flow of the casting liquid into the casting sand mold cavity.

[0022] Both the casting inlet 4 and the riser 6 are frustum-shaped. The frustum-shaped riser helps to maintain the temperature of the molten casting inside the riser, prolongs the solidification time of the molten casting, and improves the feeding efficiency.

[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A wooden mold for an automobile subframe, characterized in that: The system includes an upper sand mold and a lower sand mold with wooden structures. The upper sand mold and the lower sand mold are respectively provided with corresponding positioning bosses and positioning grooves. The positioning boss is provided with an upper mold surface, a casting port, and a riser. The riser is distributed around the upper mold surface and on the front side of the center. The upper mold surface, the casting port, and the riser are connected by a first flow channel. The positioning groove is provided with a lower mold surface and a second flow channel corresponding to the first flow channel.

2. The automobile subframe wooden mold as described in claim 1, characterized in that: The upper and lower sides of the positioning boss are respectively concave and convex.

3. The automobile subframe wooden mold as described in claim 1, characterized in that: It also includes a core block with a wooden structure, wherein the positioning boss and the positioning groove are respectively provided with a first core and a second core, and the first core and the second core correspond to the core block.

4. The automobile subframe wooden mold as described in claim 3, characterized in that: The core block is composed of trapezoidal bodies connected to the core.

5. The automobile subframe wooden mold as described in claim 1, characterized in that: The casting gate is located on the rear side of the middle of the upper mold surface.

6. The automobile subframe wooden mold as described in claim 1, characterized in that: Both the casting port and the riser are frustum-shaped.

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